Ghost talkers
(Book)

Ginger Stuyvesant, an American heiress living in London during World War I, is engaged to Captain Benjamin Hartshorne, an intelligence officer. Ginger is a medium for the Spirit Corps, a special Spiritualist force ... Ginger and her fellow mediums contribute a great deal to the war efforts, so long as they pass the information through appropriate channels. While Ben is away at the front, Ginger discovers the presence of a traitor. Without the presence of her fiancé to validate her findings, the top brass thinks she's just imagining things... Left to her own devices, Ginger has to find out how the Germans are targeting the Spirit Corps and stop them. --Publisher